Window seal structure



April 22, 1952 H. s. DAVIS 2,593,658

WINDOW SEAL STRUCTURE Filed July 19, 1950 JNVENTOR.

. flax/w 5. DAV/.5.

Patented Apr. 22, 1952 UITED STATES This invention relates to a windowseal structure and more particularly a weather strip seal adapted forwindows of a type which include relatively slidable sashes.

The principal object of the invention is to provide such a sealstructure or weather stripping as may be readily applied to the uprightside members of the window casing which serves as a parting strip forguiding the sliding movement of the upper and lower window sashes andmaintaining them in proper alignment while serving as a sealtherebetween. For this purpose the upright side members of the casingare recessed to receive and nest therein a tubular metal parting striphaving an inwardly exposed throat for slidably receiving therein thesealing elements secured to the respective sashes. Thus the partingstrip serves as an inner guide between the two sashes to retain them inalignment and an effective seal therewith in a manner to permit relativesliding movement while preventing the passage of air, dust, and waterthereabout.

Other features of the parting strip seal reside in the ease ofinstallation and removal, and whereby it may be secured without therequirement of screws, nails or the like; and which will eliminatefriction in the sliding action of the sashes which ordinarily occurs dueto swelling of the wooden members.

The. full nature of the invention will be understood from theaccompanying drawings and the following description and claims:

In the drawings,

Fig. l is a horizontal sectional view of a por-,

tion of the left side of a window structure 11- lustrative of theinvention.

Fig. 2 is a partial vertical section through the top of the upper sash.

Fig. 3 is the same as Fig. 2 illustrative of the lower part of the lowersash.

Fig. 4 is a partial perspective view showing the junction of the weatherstrip members with the lower sash partially raised.

Fig. 5 is a diagrammatic illustration of the mode of applying andremovably securing the sash parting weather strip in place by a specialtool.

In the drawings there is shown a window structure including a mountingframe therefor, which frame embodies upright side members I0 embracedwithin the window casing indicated at v sash Hi and the lower sash itare adapted to slide relative thereto and to each other in the usualmanner, each being provided with the window panes it and i!respectively.

The parting strip i3 is of tubular'channel-like form extending the fullhei ht of the window frame between the respective sashes I i and I5 andon each side thereof. As shown herein said parting strip is formed ofsheet metal, being preferably rectangular in cross section with a baseportion [8 seating in the recess I2 cf the frame member it, with theside walls !9 and projecting inwardly .oi the window frame to providebearing surface against which the sashes l4 and I5 engage in theirsliding movement. Said parting strip may be readily inserted in therecess without the use of screws, nails, or the like by inserting anindenting tool iila of suitable form and curvature to provide anindenting end lfib which, by hammer tapping, will force beads of metalinto the Wood as indicated at 580, all as illustrated in Fig. 5.

As above described the side walls i9 and 20 terminate in end sectionswhich extend inwardly and provide side thrust bearings for the" windowsashes, as indicated at 2|, 2:2, said end sections in turn are bentinwardly to provide a throat 23 extending longitudinally of the stripthroughout the full length thereof and. embraced. by the inturned lips2d and 25. The metal strip is formed with inherent spring tensionwherein its throat is biased to closed position with the lips 24, 25normally bearing against each other.

Secured vertically of the sashes and along their respective adjacentsurfaces there are provided opposed. Z-shaped metal strips 26 with theirmounting faces secured to the inner surfaces of the respective sashes Iland their inturned intermediate sections indicated at 2'! approachingeach other and bent laterally for termination in the sealing flangesindicated at 28, said flanges each identified specifically by thenumeral 29 for sliding contact relative to each other and to the lips24, 25 as the sashes are raised or lowered.

Thus the inherent spring tension of the lips 24, 25 of the throat 23 atall times yieldingly bear against the sealing flanges 28 maintaining aslidable sealing contact with said flanges and in turn maintaining saidflanges in sliding sealing con tact relative to each other.

Secured along the upper portion of the top sash I l, and onthe innerside thereof as illustrated in Fig. 2 there is provided a weather strip32 through the medium of the fasteners or nails 33. A correspondingcomplementary weather strip 34 is secured to the upper horizontalparting strip 35 by means of fasteners or nails 35. In a similar mannera weather strip 37 is secured along the outer surface of the bottom ofthe lower sill by the fasteners or nails 38 as shown in Fig. 3. Thisstrip cooperates with the weather strip 39 secured to the sill M] by thefasteners or nails 4!. Thus a weather strip seal is provided at the topand bottom of the sashes in the usual manner and as particularly shownin Figs. 2 and 4.

Through the medium of the sash parting weather strip above described andidentified by the numerals i3-29 I obviate the use of the ordinaryparting and moulding strips and in old windows make use of the recess l2from which the usual wooden parting strip is removed. By means of thisstructure not only is the recess filled and protected but a permanentand effective seal is provided which maintains both sashes in alignmentunder spring tension eliminating the usual friction which ordinarilyoccurs due to swelling of parts. Furthermore the installation of thisstructure requires no coring of the sash, or special tools and throughthe use of such a tool Mia as indicated in 5 it may be readily installedand as readily removed for replacement or repair.

The invention claimed is:

l. A metal parting strip and weather seal adapted to be secured to awindow frame having an inset groove extending intermediate relativelymovable sashes, comprising a metal channel-like tube having an innerbase portion adapted to be embedded and secured within the said windowframe groove to extend outwardly therefrom, said tube being formed anouter exposed throat portion providing a sealing channel extendingcentrally and longitudinally thereof, and opposed sealing strips ofZ-shaped cross-sectional form, each having an inwardly flanged portionthereof secured to the inner sin-"ace of its respective sash in adirection extending from said tube whereby said tube will have directcontact with the respective sashes to serve as a parting strip therefor,each said sealing strip having a sealing flange extending inwardly fromthe respective sashes and in a direction opposite to said firstmentioned flange into and through the throat portion of said tube forsealing and sliding contact therewith.

2. A metal parting strip and weather seal adapted to be secured toawindow frame having an inset groove extending intermediate relativelymovable sashes, comprising a metal channel-like tube having its baseportion embedded and se= cured within the said groove of the frame toextend outwardly therefrom to provide a parting strip for said sashes,said tube having its outer exposed side formed with a throat portioncomprising inturned lips spring biased toward each other, and opposedsealing strips of Z-shaped cross-section carried by the inner surface ofeach sash respectively inwardly of and free of contact with said tube,each of said strips having'an intermediate section thereof lyingadjacent the outer exposed side surface or" said tube to effect asliding and guiding side thrust bearing for said sashes and terminatingin an inwardly turned sea-ling flange extending into said throat forsliding engagement relative to each other and the inturned throatforming lips of said tube to maintain sliding and sealing contact witheach other under the inherent spring tension of said lips.

3. A metal parting strip and weather seal secured to and adapted to besecured to a Window frame having an inset groove extending intermediaterelative movable sashes, comprising a metal channel like tube having abase portion extending within said groove to provide a parting strip fordirect sliding contact with said sashes, said tube being substantiallyrectangular in cross-section and formed along its outer exposed wallwith a threat defined by inwardly extending lip portions spring biasedtoward each other for normally closing said throat, and opposed sealingstrips secured to the inner sur faces of said sashes respectivelyinwardly of and free from engagement with said tube, each of saidsealing strips having a flange portion extending into said throatbetween said lips for effecting a seal therewith under the inherentspring tension of said lips for permitting relative sliding movementtherebetween.

4. A metal parting strip and weather seal as set forth in claim 3wherein the base portion of said tube is punched into the wall of saidgroove for anchoring it therein against displacement.

HARRY S. DAVIS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,143,033 Bricker June 1", 19151,451,466- Nordblad a e Apr. 19, 1923

